Chagnon Building & Remodeling, LLC
Chagnon Building & Remodeling is a second-generation design-build contractor based in Hadley and serving Northampton and communities across Western Massachusetts. Gary Chagnon founded the company in 1992; he handles design while his son Patrick runs construction. Its work includes custom homes, additions, kitchen and bathroom remodeling, basement finishing, decks and porches.
Business Highlights
- It is a family business founded in 1992.
- It lists a Massachusetts Construction Supervisor License (#060175).
- It lists a Home Improvement Contractor license (#112751).
- It lists general liability and workers' compensation coverage.
- It is BBB-accredited since 2011.
- Gary Chagnon is a certified Energy Crafted Home Builder, Vectorworks Designer and 20/20 Kitchen Designer.
Service Area
Hadley, Northampton, Amherst, Belchertown, Holyoke, Easthampton, Westfield, Springfield, the Pioneer Valley and Western Massachusetts.
Featured on ProsGrade. Chagnon Building & Remodeling, LLC is one of 8 renovation contractors ProsGrade lists in Northampton, Massachusetts.
8 services listed, including Custom homes, Additions and add-a-levels and Kitchen remodeling. Open weekdays, closed on weekends. Rated 4.6 from 27 reviews.
- Verified listing details
- Service information
- Customer review signals
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- Public contact information
- Published local profile
How This Business Compares
How Chagnon Building & Remodeling, LLC compares with the other 7 renovation contractors on ProsGrade in Northampton, using public Google ratings and review counts.
- Ranks in the top half of the 8 Northampton renovation contractors on ProsGrade by Google rating and review volume.
- Has more Google reviews (27) than 6 of the 7 other Northampton renovation contractors on ProsGrade.
Services Covered
8 services- Custom homesIn-house design and construction
- Additions and add-a-levelsRoom additions and second-story additions
- Kitchen remodelingCustom cabinetry and layout options
- Bathroom remodelingTile, plumbing, fixtures and vanities
- Finished basementsMoisture management and insulation
- Decks and porchesComposite and PVC decking
- GaragesDetached and attached
- Siding, windows and doorsSiding installation; replacement windows and exterior doors
Reviews
What customers say
Customers praise careful workmanship and communication, including prompt answers and progress updates. One customer also appreciated a design that reflected their needs and budget.
Customer Reviews
Opal Avenue Interior Design
Mara Simon
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Frequently Asked Questions
How long do Chagnon Building & Remodeling projects take?
Most kitchen remodels take 4–10 weeks, depending on scope. General ranges are 8–16 weeks for finished basements and 3–5 months for additions.
How does Chagnon Building & Remodeling set a project price?
The design agreement is paid and divided into two phases. After full drawings and material and finish selections, the company prepares a detailed fixed-price proposal.
What happens if the scope changes during a Chagnon Building & Remodeling project?
The company calculates and explains the change's cost, then obtains written approval before proceeding.
Does Chagnon Building & Remodeling offer financing?
It does not offer financing directly; it accepts cash, check and major credit cards.
How does Chagnon Building & Remodeling control dust during bathroom work?
Bathroom projects use HEPA filtration and dust control to help keep the rest of the home livable.








